S. L. Guimarães, J. I. Baldani, V. L. D. Baldani, and J. Jacob-Neto, “Addition of molybdenum in peat innoculum with diazotrophic bacteria used in two rice cultivars”, PAB, vol. 42, no. 3, pp. 393–398, Mar. 2007, doi: 10.1590/S1678-3921.pab2007.v42.7580.